Malicious PDF — malware analysis report

Static analysis result for SHA-256 615dc9d129774f4b…

MALICIOUS

PDF

84.8 KB Created: 2020-11-19 11:57:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 768274a84d05a17619d3b1bce6e41ee5 SHA-1: c83284b361e1e0d0ad34b7378e151c74a07f6564 SHA-256: 615dc9d129774f4b163443704979bc912b48103d6956430da3afdc7c5aa10591
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a critical heuristic firing for a malicious redirector link pointing to traffmen.ru. This indicates the document's primary purpose is to lure the user to a potentially harmful website. While no scripts were explicitly extracted, the ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://traffmen.ru/strik?utm_term=des+sketches+%25C3%25A0+lire+et+%25C3%25A0+j In PDF document text
    • https://fimozafovobas.weebly.com/uploads/1/3/2/7/132741130/eb0207db7.pdfIn PDF document text
    • https://puxugewukuniw.weebly.com/uploads/1/3/4/4/134492634/f9e0bfc1.pdfIn PDF document text
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/gekatefobawo.pdfIn PDF document text
    • https://zozelezike.weebly.com/uploads/1/3/4/4/134434207/8863883.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lijopavexanuse/unique_personnel_timesheet.pdfIn PDF document text
    • https://s3.amazonaws.com/lefemijip/pdf_to_audio_converter_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8105d688-cc8c-43b5-a363-bd6878b6d344/loxasofixumovowuw.pdfIn PDF document text
    • https://s3.amazonaws.com/gixawetopoli/marlin_guide_gun_custom.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/62406077736.pdfIn PDF document text
    • https://s3.amazonaws.com/subud/49503157572.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/cfcb44c8-f167-406d-8d3b-a701469c2ef3/worksheet_electrons_in_atoms_answers_3.12.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7a14ad23-4b76-42bf-89ea-42005b48caf5/26998218522.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/82e3c36b-0857-4976-9f42-faef1a24a24a/rompre_un_service_civique.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000109d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109D8 5052 bytes
SHA-256: e1c82e3989e174666d57f1ba06d306e2444d0eceeb93f75a9ed116a5ce10044b
font_01_sfnt_off00011b0c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11B0C 13496 bytes
SHA-256: 812ebbd0ea506f31be54257ee5e47dc4f1959221f98981edbf302e404752dd96

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